Duplicating machine



May 28, 1946. R J. R. ROBERTS l 2,401,020

I DUPLICATING MACHINE 4 Fiied Aug. 21, 1942 sheets-sheet 1 INVETOR.

John Roer'- BY www www@ May 28, 1946. i J. RqRoBERT 2,401,020

DUPLICATING MACHINE Filed Aug.' 21, 1942 7 sheets-sheet z I I l e l 1 l Misma@ @icm/m Q A CZCQS."

28, 1946. l J. R. VROBERTS 2,401,020

DUPLICATING .MACHINE Filed Aug. 2l, 1942 '7 Sheets-Sheet 3 INVENTOR. @hn R Robers- May 28, 1946. ,1. R. ROBERTS DUPLICATING MACHINE Filed Aug. 21, 1942 7 Sheets-Sheet 4 lill yINVENUIOR `Tol-n E Roberts.

J. R. ROBERTS 2,401,020

DUFLICATING MACHINE Filed Aug. 21, 1942 7 Sheets-Shes?l 5 ay w46. Y

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May 28, 19461 J. ROBERTS y, I 2,401,020

DUPLICATING MACHINE Filed Aug. 2l,- 1942 '7 Sheets-Sheet 6 'i v INVENTOR l JOI-n R- Rober's- @www fa/am,

May 28? 1946.

J. R. RoBETs l 2,401,020

DUPLICATING .MACHINE Filed Aug. 2l, 1942 7 Sheets-Sheet '7 INVENTOR y ,JhnfRjEobera Patented May 28, 1946 DUPLICATING MACHINE .iohn B. Roberts, Glenview, Ill., assignor to Ditto, Incorporated, Chicago, Ill., a corporation of West Virginia Application August 21, 1942, Serial No. 455,573

9 Claims.

The present `invention relates to duplicating machines and is particularly directed to duplicating machines of the general type disclosed in the patent to Gibson, No. 2,277,967. It has for its purpose the provision of a novel combination of parts `whereby an operator may make individual copies of segments of material found on the master copy sheet that is attached tothe drum. In the use of duplicating apparatus of this type it is frequently desirable to place a multiplicity of items such as names and addresses upon a single master sheet. In making copies from this master sheet the operator usually does not desire very many copies of each item alone but it is essential that the few copies needed be made, and segregated as they are made, with as much speed as possible. An example cf the type of operation to which I refer is the filling out of United States defense bonds and record forms and envelopes to go with said bonds. Where a number of people are buying bonds at about the same time a master sheet is prepared by typing the names and addresses of several bond purchasers on one side of the sheet while a hectograph carbon sheet is placed beneath the sheet. The under surface of the sheet thus receives the imprints of the names and addresses in reverse and becomes the active side of the master sheet. The bonds themselves are arranged in sets with their record cards so that there is attached to each bond two record cards,

`looth of which must receive the same information that is imprinted upon the bond, Assuming that it is also desirable to address an envelope in which the bond is to be mailed, the operator would have to make four imprints of each name and address contained on the master sheet. A block-out sheet is commonly used to cover the portions of the master sheet that must he masked during the duplicating operation.

The operator however must feed the individual bonds and record cards and envelopes to the duplicating apparatus and when the several copies are made the record cards must be separated from the bond itself. Also, themaking of the imprints von several bond sets from a particular master involves the shifting of the b1ock-out sheet a necessary amount after each set of bond form lbeen run through the machine. `My invention is embodied in a machine of the type above referred to and comprises means whereby the operator can feed the copies, to be printed upon, to the machine with one hand and segregate the printed copies as theyjleave the machine with the other hand, advancing the feeding guides and the block-out sheet as each new bond set is started through the duplicating machine and segregating the completed copies as they leave the duplicating drum. The arrangement is such that the duplicating apparatus discharges the printed copy where it can be readily seen and grasped hy the operator, the feeding arrangement being such that 'it does not require visual inspection by the operator to determine Whether the proper positioning of the feed tray guide and the block-out sheet havebeen made.

' It is also a purpose of this invention to provide a novel arrangement of parts of a duplicating machine of the character described whereby `to `facilitate the operation of the machine by `an operator seated alongside of it.

Theinvention has as a further object the provision of a novel means for receiving sheets from the duplicating drum. Also, it is a, purpose of the invention to provide a novelmeans forsimultaneously adjusting a feed tray guide and a blockout sheet that determine the position of `a cop-y sheet vand the matter to be duplicated thereon.

The features and advantages of the invention will appear more fully from the following description, reference being had to the accompanying drawings wherein a preferred form of the invention -is shown. It should be understood however that the drawings and description are illustrative only and are not to be taken as limiting the invention except insofar as it is limited by the claims.

In the drawings:

Fig. 1 is a view in side elevation of the duplicating apparatus embodying my invention, the machine being shown with the side thereof that is toward the operator in front:

Fig. 2 is an end view partly in section, taken on the line 2 2 of Fig. 1;

Fig. 3 is a plan view of the machine;

Fig. 4 is a sectional view taken on the line 4 4 of Fig. 2; Y Y Y Fig. 5 is a fragmentary sectional View taken on the line E-Siof Fig. 3;

Fig. 6 is a sectional view taken on the line of Fig. 4; i i

Fig. '7 is an enlarged sectional view taken on the line l-'l of Fig. 2;

Fig. 8 is a fragmentary sectional view taken on the line 8-8 of Fig. 4;

Fig. 9 is a fragmentary perspective view illustrating the block-out sheet advancing means;

Fig. 10 is a sectional view taken von the line T m--lo of Fig. 2;

Fig. 11 is a sectional view taken on the line II--II of Fig. and

Fig. 12 is an enlarged sectional view taken onY t cross rods such as I'I and I8 (see Fig. 11).v A motor I9 (see Fig. 7) is supported on a base 20 located between the side frames and supplies the necessary power to operate the duplicating apparatus. The motor has a pulley 2i which drives a belt 2 2 that in turn drives a pulley 23 journaled on ,a shaft 24 carried by the side frame I4. A smaller pulley 25 is integral with the pulley 23 and serves to drive a belt 26 that in turn drives a pulley 21 which is journaled on a shaft 28 carried by the side frame I4. The pulley 21 is integral with a gear 29 which meshes with a main drive gear 36 for rotating the drum I2. The driving gear 30 has a clutch member 3| thereon and this clutch member is adapted to be connected to the drum by a pawl 32 carried on the drum and normally in engagement with one of the teeth 33 of the member 3l when the drum is being rotated. Suitable control means for disengaging Y the'pawl 32 at vthe proper time are provided as described in the patent hereinbefore referred to. These control means are shown generally in Figs. 4 to 11,` inclusive, but since they form no part of the presentA invention they will not be described in detail. The parts of the control means that Vare of importance to the present invention comprise a trip bar`34 which connects two operating pawl tripping and stopping mechanism 31 (see Y Fig. 10), which mechanism is adapted to engage a portion 36 of the pawl 32 as the drum rotates to release the pawl from the vclutch member 3l and stop the drum in normal or'home position.

A master sheet gripping means 39 is of course provided in the drum and the lever carries a roller 46'which cooperates with the master sheet gripping control inthe manner described in the patent hereinbefore mentioned. y

The trip bar 34 provides a hand means for initiating operation of the duplicating drum but the lever 35 is also connected to a treadle mechanism by means of a bar 4I and a link 42. A lever arm 43 is pivoted to the side frame I3 by a pin 44 and the link 42 is connected to the free end of the arm 43. A spring 45 has one end connected to a pin`46 on the frame I3 and the other .end connected to the arm 43 so as to tend to raise the arm. Intermediate its ends the lever arm 43 has a link 41 connected thereto. This link 41 extends downwardly through an opening 46 (see Fig. 2) in the bottom flange of the side frame I3 and downwardly through an opening 49 in the top flange 56 of the stand I0 where it connects with This link extends downwardly and forwardly at the right-hand side of the stand as shown in Fig. l and is attached at its lower end to a lever arm y 55 which is fixed on a shaft 60. The shaft 66 is journaled in a bearing 6I provided in one side frame of the stand I0 and extends through the inner wall of the side frame where it is affixed to a foot treadle 62. The other end of the foot treadle 62 is connected to a similar shaft journaled in the other side frame of the stand I0 and this shaft is connected by like legs and levers to the shaft 52.

It will be noted that the position of the duplicating drum and its control mechanism is such that a person sitting at the open side of the stand I0 so as to use the foot treadle 62 is positioned at the end of the drum that is nearest to the side frame I 4. The operator thus is able to see the feed tray I5 and the receiving tray I6 as well as the top of the drum. In thismachine as in the patent above referred to the control mechanism makes it possible to stop the drum with the master sheet gripping means 39 at the master release position which is the position shown in Fig. 4. In this position it is possible for the operator to observe the position of the block-out sheet and to reach the feed tray, the receiving tray and the block-out sheet without difficulty.

The master sheet release mechanism is operated by a lever 63 which is fixed on a shaft 64 that extends across the machine and is journaled in two bosses G5 and 66 in the side frames I3 and I4, respectively (see Fig. 11). As shown best in Fig. 7 the shaft 64 is connected by an arm 6'! to a link 68 that is in turn connected to a lever arm 69 pivoted on the drum shaft. The lever arm 69 is adapted to operate the gripper opening mechanisrn for opening the master sheet grippers 39 as in the manner described in the patent hereinbefore mentioned. Since the details of this mechanism form no part of the present invention n it is believed that further description thereof is unnecessary. It will be noted however that the lever 63 is positioned at the end of the shaft 64 closest to the operator (see Fig. 1l.) so that it is readily accessible to the operator.

Referring now to the feed tray I5, this feed tray is shown as provided with a relatively fixed side guide 'I6 located at kthe side of the feed tray closest to the side frame I3. A movable side guide 'II is mounted on the feed tray for movement toward and away from the side guide l0. Each side guide comprises a strip of metal bent to provide a horizontal portion 'IIa in addition to the opstanding guide portion 'I6 or 1I. The bottom of the feed tray I5 is provided with two narrow transversely running slots 'I2 and 13. A portion 'IIa of the side guide 'II has two threaded pins 14 and l5, the pin 'I4 passing through the slot I2 and the pin 'I5 passing through the slot 13. rIhese pins, as shown best in Fig. 4, are provided with heads that are fastened in the horizontal portion 'Ha by welding or other suitable means. Directly beneath the slots 'I2 and 'I3 the feed tray is reinforced by a plate 'I6 which is also provided withy slots as indicated at 'I1 and 'I8 corresponding to the slots 'I2 and 13. The plate 'I6 has a series of conical recesses I9 in the lower surface thereof, these recesses being arranged in a row alongside the slot 18. The recesses serve as stops to receive a conical head 86 on a spring pressed pin 8l that is mounted in a bracket 8?., the bracket 82 beingfastened to the pins 'I4 and 15. The pins 'I4 and 'I5 have collars 83 and 84 thereon, the collars being fixed and being of such size 4as to Vride .freelyin the slots Hand '18. The conical head of the jpin 9| makes it possible for the operator to move the side guide 1| longitudinally along the plate 'I6 to adjust the spacing `betweenthe .side guide 'Il and the side guide `I0. Each time the head 80 snaps into one'of the recesses 'I9 it indicates-to the operator that a movement of .theguide adenite distance has taken place. As a `further check a visual indicator strip 35 ismounted on top ofthe feed tray adjacent the end of the side guide 'II and this indicator strip is provided with numbered markings corresponding to the recesses 19.

The side guide 'I0 may also be adjusted if kdesired since it is provided with two pins 86 and 8l adapted to ride in the slot l2 anda third pin 08 that rides in a slot l89 provided inthe `feed .tray I5. The pins 86 and 81 have nuts 90 and 9| .threaded thereon and lock nuts 92 and 93 holding them in place. The nuts 90 and9| however are notV drawn so tightly but that it is `possible to slide the side .guide 1.0. `In order tolock the side guide in position a knurled nut Y9|! is provide on the pin 88.

The side guide 'II also carries means for moving a block-out sheet on the vdrum I2. The side guide 1| is provided with an upwardly and diagonally extending part 95 that is aperturedrto receive a bearing sleeve 96 (see Fig. 2) `that slides upon the cross tie rod I8. Thesleeve 90 `has an ear 9i thereon to which is pivoted a lever arm `98, one end of which `is offset as indicated at 99 `and connected t0 a link |00. The link |00 is in turn connected to a lever arm |0| that is fastened on ashaft |02 carried by the side guide The side guide hasa projection |03 that is bent over to serve as fa top mounting for the shaft |02. The lower end of the shaft |02 is pivoted in an ear |04 that is struck out ofthe side guide 1|. A collar |05 is ixed on the shaft |02 to keep it from sliding downwardly through the ear |04. A spring |06 is coiled about thevshaft |02, one end |01 of the spring bearing against the side guide 'II and lthe other end |08 of the spring bearing against the lever arm l 0 I. A hand lever |09 formed vonlthe collar |05 extends horizontally alongside the side `guide 'II `where'it can be readily grasped by the operator at the sameV time that the operator is grasping the side guide to move it. l

rEhe lever 98 extends over the drum I2 in position to engage a block-out sheet receiving slot ||0 in the drum (see Fig. 9). This block -out sheet receiving slot I I0 has magnetic means asso.. ciated therewith adapted to attract and hold a magnetically attractable portion I I of the blockout sheet H2. A nger I I3 is provided on the free end of the lever-98 to engage in the slot IIO. Normally the spring |06 biases the lever A98 by means of the arm |0I andthe link |00 in such a direction as to hold the finger ||3 out of the vslot ||0 so as not to interfere with the rotation of the drum. However, when the drum is stopped .in master sheet release position (the position shown in Fig. 4) the nger I|3 can be lowered into the slot I0 by pressure on the hand lever |09 so that the `block-out sheet will be moved lengthwise of the slot by the finger `I I3 at the same time and for the same distance as the side guide |I. It is thus possible by a single operation by the operator to adjust the block-out-sheet ||2 and theside guideII. 1 v

Referring now to the receivingk tray I6, this tray, as shown best `in Figs. 4, 5 and 12, comprises a main tray portion |142 upon which there is arranged -a removable ledge or shelf I 5.` The shelf I5 extends transversely of the tray I6 throughout its `entire width and extends `beneath the kdrum I2 `so as to catch the sheets as theyA leave the drum. A copy sheet I I6 is shown in Fig. 4in the position it will occupy whenreleased by the drum and laid on the shelf ||5. It will be noted that the shelf is sonarrow that the sheet ||6-eXtends beyond the edge vof the shelf la shortdistance where it can be readily grasped bythe operator. To the left of the shelf `I I5 there is "also provided an insert I on the tray I6 and this insert is provided with `partitions I I 8 running lengthwise of the tray and spaced vtransversely of the tray so that the sheets ||6 can be segregated between the partitions IIS. Thisis particularly advantageous where the sheets |16 comprise cards that are relatively narrow and other portions that are wide. Asshown best in Fig. 3, there are two `nar-- row receiving `portions 9 and |20 and one wide receiving portion |2| provided by the partitions H0 and the side edges of the tray I 6. Any suitable 4means such as small pins |22 (see- Fig. 4) may be provided on the member |I| for ,positioning the `member I I1 with respect `to the tray It.

In orderthat the operation of the present device may be readily understood let us assume that a master sheet |23 is attached to the drum I2 (see Fig. 3) and that a block-out sheet |I2 having a kwindow |24 is used to -expose various sections |25 of information provided on the master sheet |23. The operator, in making copies such as H6, adjusts the side guide 1| and simultaneously therewith the block-out sheet I I2 (the magnetic means for holding the blockmut sheet permits it Vto slide lengthwise of the slot I0 with little diiculty but holds it with suicient strength to prevent the block-out sheet from becoming displaced in the normal duplicating operation). It is only necessary then tol-hold `the copy sheet against the `side guide '1| and slide it into engagement with the combined feeding and moistening rolls |26 and |21 (see Fig) of theduplicating machine `in order to have .the copies properly aligned to receive the imprint of the `exposed section `of the master sheet |23. As 'the `copiesleave `the drum ||2 they slide out on the shelf I I5 where `they are visible to the operator so Ythat he maygrasp the free rend of the copy sheet and deposit it in one of the receiving `portions II9, |20 and |2I. When the desired number of copies have been made of this particular section of the master sheet the oper,- ator grasps the side guide 'II and the hand lever |09 to advance the side guide toward him and at the same time to move the block-out 4sheet |I2 toward him so as to expose another section ofthe master sheet.

From the foregoing description it is believed that the operation and advantages of the device hereinbefore described will Abe apparent to those skilled in this art.

While there have been shown and described certain embodiments of the invention, it is to be understood that itis capable of manymodiiications. Changes, therefore, may be made without departing from the scope of the invention `as described in the appended claims, in which it is the intention to claim all vnovelty inherent in the .invention as broadly as possible, in viewpf the prior art. e

I claim:

1- A duplicating apparatus of the character dei scribed, comprising a hollow base open at `one side, a framework mounted on topof said base, a

lduplicating drum having means for holding a master copy thereon, said drum being rotatably mounted in said framework with one end thereof facing in the same direction as said open side of the base, foot treadle means in said base for starting and stopping said drum, a feed tray at one side of said drum having a relatively fixed side guide at the edge thereof remote from the open side of the base and a step by step adjustable side guide movable from a point adjacent to the rst named sideguide toward the side of the feed tray closest to the open side of said base, said drum having a block-out sheet holding means therein in which a block-out sheet may be moved lengthwise of the drum without releasing the sheet, and manually operable means connected with the adjustable sideguide for correspondingly moving the block-out sheet when the adjustable side guide is moved lengthwise of the drum. A

2. In a duplicating apparatus, a framework, a duplicating drum rotatably journaled therein, means to rotate said drum, said drum having means for holding a master sheet thereon, a copy sheet feed tray adjacent to said drum, an adjustable side guide on said tray movable lengthwise of the drum, said drum having a block-out sheet holding means therein in which a block-out sheet may be moved lengthwise of the drum-without releasing the sheet, and manually operable means connected with the adjustable side guide for correspondingly moving the block-out sheet when the adjustable side guide is moved lengthwise of the drum. j

3. In a duplicating apparatus, a framework, a

j duplicating drum rotatably journaled therein,

means to rotate said drum, said drum having means for holding a master sheet thereon, a copy sheet feed tray adjacent to said drum, an adjustable side guide on said tray movable lengthwise of the drum, said Ydrum having a block-out sheet holding means therein in which a blockout' sheet may be moved lengthwise of the drum without releasing the sheet, and manually operable means connected with the Vadjustable side guide for correspondingly moving the' block-out sheet when the adjustable side guide is moved lengthwise of the drum, said manually operable means comprising a lever, a rod on the framework supporting said lever for pivotal movement in a plane transverse to the axes of the drum,

' said lever being slidable lengthwise ofthe rod, and a finger on the lever for engaging and moving a block-out sheet mounted on the drum.

` 4. A duplicating apparatus of the character described, comprising a hollow base open at one side, a frameworkmounted on top of said base, a duplicating drum having means for holding a master copy thereon, said drum being rotatably mounted in said framework with one end there- 0i' facing in the same direction as said open side of the base, foot treadle means in said base for starting and stopping said drum, a feed tray at one side of said drum having a relatively fixed side guide at the edge thereof remote from the f open side of the base and a step by step adjust- -able side guide` movable from a point adjacent to the first named side guide toward the side of the feed tray closest to the open side of said base, said drum having a block-out sheet holding means therein in which a block-out sheet may be moved lengthwise of the drum without vreleasing the sheet, and manually operable means connected with the adjustable side guide for cor-- respondingly moving the' block-out sheet when the adjustable side guide is moved lengthwise of the drum, said manually operable means comprising a lever, a rod on they framework supporting said lever" for pivotal Vmovement in a plane transverse to the axes of the drum, said lever being slidable lengthwise of the rod, and a finger on the lever for engaging and moving aVblock-out sheet mounted on the drum.

5. In a duplicating apparatus, a framework, a duplicating drum rotatably journaled therein, means to rotate said drum, said drum having means for holding a master sheet thereon, a copy sheet feed tray adjacent to said drum, an adjustable side guide on said tray movable lengthwise of the drum, said drum having a block-out sheet holding means therein in which a block-out sheet may be moved lengthwise of the drum without releasing the sheet, and manually operable means connected with the adjustable side guide for correspondingly moving the block-out sheet when the adjustable side guide is moved lengthwise of the drum, said manually operable means comprising a lever, a rod on the framework supporting said lever for pivotal movementin a plane transverse to the axes of the drum, means on the side guide for turning the lever on said rod, said lever being slidable lengthwise of the rod, and a finger on the lever for engaging and moving a block-out sheet mounted on the drum.

6. In-a duplicating apparatus, a framework, a duplicating drum rotatably journaled therein, means to rotate said drum, said drum having means for holding a master sheet thereon, a copy sheet feed tray adjacent to said drum, an adjustable side guide on said tray movablelengthwise of the drum, said drum having a block-out sheet holdingmeans therein in which a block-out sheet may be moved lengthwise of the drum without releasing the sheet, and manually operable means connected with the adjustable side guide for correspondingly moving the block-out sheet when the adjustable sideguide is moved lengthwise of the drum, said manually operable means comprising a lever, a rod on the framework supporting said lever for pivotal movement in a plane transverse to the axes of the drum, said lever being slidable lengthwise of the rod, said side guide being connected to saidlever whereby to move the lever lengthwise of the rod when the side guide is moved, and a nger on the lever for engaging and moving a block-out sheet mounted on the drum.

7. In a duplicating apparatus, a framework, a duplicating drum rotatably journaled therein, means to rotate said drum, said drum having m-eans for holding a master sheet thereon, a copy sheet feed tray adjacent to said drum, an adjustable side guide on said tray movable lengthwise of the drum, said drum having a block-out sheet holding means therein in which a block-out sheet may be moved lengthwise of the drum without releasing the sheet, and manually operable means connected with the adjustable side guide for correspondingly moving the block-out sheet when the adjustable side guide is moved lengthwise of the drum, said manually operable means comprising a bearing member secured to said side guide, a lever pivoted on' said bearing member, a finger on said lever movable into and out vof position to engage a block-out sheet on the drum, and means on the side guide operably connected to the lever for moving the lever and finger into operative position. f y

8. In a duplicating apparatus, a framework, a duplicating drum rotatably journaled therein, means to rotate said drum, said drum having means for holding a master sheet thereon, a copy sheet feed tray adjacent to said drum, an adjustable side guide on said tray movable lengthwise of the drum, said drum having a block-out sheet holding means therein in which a block-out sheet may be moved lengthwise of the drum without releasing the sheet, and manually operable means connected with the adjustable side guide for co1'- respondingly moving the block-out sheet when the adjustable side guide is moved lengthwise of the drum, said manually operable means comprising a bearing member secured to said side guide, a lever pivoted on said bearing member, a linger on said lever movable into and out of position to engage a block-out sheet onthe drum, and means on the side guide operably connected to the lever for moving the lever and finger into operative position, said last named means comprising a hand lever pivoted on the side guide, and a link connecting the hand lever Awith the nger operating lever.

9. In a duplicating apparatus, a framework,`

a duplicating drum rotatably journaled therein,

means to rotate said drum, said drum having` means for holding a master sheet thereon, a copy a lever pivoted on said bearing member, a ngerV on said lever movable into and out of position to engage a block-out sheet on the drum, and means on the side guide operably connected to the leverA for moving the lever and nger into operative position, said last named means comprising a hand lever pivoted yon the sidev guide, a link connecting the hand lever with the nger'operating lever, and spring means holding said linger nor-V mally away from the drum. i

JOHN R. ROBERTS; 

